I think we need to clarify what you are seeing and what you want.
In a calendar app, you get a reminder at x minutes before a scheduled event. This reminder is presented as a notification. When this reminder is shown, you have the option of "snoozing" the notification for n minutes or dismissing the reminder.
Other apps have notifications, usually when something happens, like a new message arriving. When this happens, the notification plays a sound and/or vibrates; maybe it displays a visual text box. Which of these three things that happen is dependent on the settings in the individual app causing the notification.
For some apps, that is the end of the notification process.
For other apps, the app can be set to repeat the sound and/or text notification every n seconds/minutes until the notification is actually interacted with.
There is no generic handling of the notifications beyond show or not show.
Which apps are given you unwanted results?
What are the notification abilities of each app?